2989668565 has 16 divisors (see below), whose sum is σ = 3883815936. Its totient is φ = 2196187200.

The previous prime is 2989668559. The next prime is 2989668587. The reversal of 2989668565 is 5658669892.

2989668565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2989668565 - 2³ = 2989668557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2989668497 and 2989668506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107991 + ... + 132820.

It is an arithmetic number, because the mean of its divisors is an integer number (242738496).

Almost surely, 2^2989668565 is an apocalyptic number.

It is an amenable number.

2989668565 is a deficient number, since it is larger than the sum of its proper divisors (894147371).

2989668565 is a wasteful number, since it uses less digits than its factorization.

2989668565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241020.

The product of its digits is 55987200, while the sum is 64.

The square root of 2989668565 is about 54677.8617449512. The cubic root of 2989668565 is about 1440.5920541588.

The spelling of 2989668565 in words is "two billion, nine hundred eighty-nine million, six hundred sixty-eight thousand, five hundred sixty-five".